Abstract
Cadmium (Cd) contamination in rice (Oryza sativa L.) poses serious health risks for human, necessitating effective mitigation strategies. This study investigated the effects of Cd stress on iron (Fe), manganese (Mn), zinc (Zn), and Cd accumulation and translocation in rice varieties with high (MY46) or low (ZS97B) Cd accumulation capacities grown in acidic and alkaline soils. Results demonstrated that Cd stress significantly inhibited plant growth, reducing plant height, shoot biomass, and grain yield in both soil types. Cd accumulation increased in roots, shoots, and grains, while Fe, Mn, and Zn concentrations decreased markedly. Molecular analysis revealed upregulation of metal transporter genes (OsIRT1, OsNRAMP1, OsNRAMP5) and the vacuolar sequestration gene (OsHMA3) in roots under Cd exposure. The translocation factor (TF) values of Mn and Zn from root to shoot were reduced in acidic soils, whereas Mn and Zn TFs exhibited an increasing trend in alkaline soils despite Cd exposure. Furthermore, correlation analyses indicated Mn and Zn play crucial roles in suppressing Cd accumulation in both acidic and alkaline soils. These findings provide critical insights for developing soil-specific strategies to reduce Cd accumulation in rice through micronutrient management.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
Cd stress significantly reduced plant height, shoot biomass and grain yield of rice in both soil types.
- Taxon
- Oryza sativa L.
Oryza sativae0 - Treatment
- Cd stresse1
- Outcome
- plant height, shoot biomass, and grain yielde1
- Direction
- reducinge1
- Setting
- both soil typese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cadmium (Cd) contamination in rice (Oryza sativa L.)”
e1“Cd stress significantly inhibited plant growth, reducing plant height, shoot biomass, and grain yield in both soil types”
Claim · model-written summary
Cd accumulation increased in rice roots, shoots and grains under Cd stress.
- Taxon
- Oryza sativa L.Oryza sativae0
- Organ / stage
- roots, shoots, and grainse2
- Treatment
- Cd stresse1
- Outcome
- Cd accumulatione2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cadmium (Cd) contamination in rice (Oryza sativa L.)”
e1“Cd stress significantly inhibited plant growth, reducing plant height, shoot biomass, and grain yield in both soil types”
e2“Cd accumulation increased in roots, shoots, and grains”
Claim · model-written summary
Cd stress markedly decreased Fe, Mn and Zn concentrations in rice.
- Taxon
- Oryza sativa L.Oryza sativae0
- Treatment
- Cd stresse1
- Outcome
- Fe, Mn, and Zn concentrationse3
- Direction
- decreased markedlye3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cadmium (Cd) contamination in rice (Oryza sativa L.)”
e1“Cd stress significantly inhibited plant growth, reducing plant height, shoot biomass, and grain yield in both soil types”
e3“Fe, Mn, and Zn concentrations decreased markedly”
Claim · model-written summary
Cd exposure upregulated the metal transporter genes OsIRT1, OsNRAMP1 and OsNRAMP5 in rice roots.
- Taxon
- Oryza sativa L.Oryza sativae0
- Organ / stage
- rootse4
- Treatment
- Cd exposuree4
- Gene
- OsIRT1, OsNRAMP1, OsNRAMP5e4
- Outcome
- metal transporter genese4
- Direction
- upregulatione4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cadmium (Cd) contamination in rice (Oryza sativa L.)”
e4“Molecular analysis revealed upregulation of metal transporter genes (OsIRT1, OsNRAMP1, OsNRAMP5) and the vacuolar sequestration gene (OsHMA3) in roots under Cd exposure”
Claim · model-written summary
Cd exposure upregulated the vacuolar sequestration gene OsHMA3 in rice roots.
- Taxon
- Oryza sativa L.Oryza sativae0
- Organ / stage
- rootse4
- Treatment
- Cd exposuree4
- Gene
- OsHMA3e4
- Outcome
- vacuolar sequestration genee4
- Direction
- upregulatione4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cadmium (Cd) contamination in rice (Oryza sativa L.)”
e4“Molecular analysis revealed upregulation of metal transporter genes (OsIRT1, OsNRAMP1, OsNRAMP5) and the vacuolar sequestration gene (OsHMA3) in roots under Cd exposure”
Claim · model-written summary
The translocation factor of Mn and Zn from root to shoot was reduced in acidic soils.
- Taxon
- Oryza sativa L.Oryza sativae0
- Outcome
- translocation factor (TF) values of Mn and Zn from root to shoote5
- Direction
- reducede5
- Setting
- acidic soilse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cadmium (Cd) contamination in rice (Oryza sativa L.)”
e5“The translocation factor (TF) values of Mn and Zn from root to shoot were reduced in acidic soils, whereas Mn and Zn TFs exhibited an increasing trend in alkaline soils despite Cd exposure”
Claim · model-written summary
The translocation factor of Mn and Zn showed an increasing trend in alkaline soils despite Cd exposure.
- Taxon
- Oryza sativa L.Oryza sativae0
- Outcome
- Mn and Zn TFse5
- Direction
- increasing trende5
- Qualifier
- despite Cd exposuree5
- Setting
- alkaline soilse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cadmium (Cd) contamination in rice (Oryza sativa L.)”
e5“The translocation factor (TF) values of Mn and Zn from root to shoot were reduced in acidic soils, whereas Mn and Zn TFs exhibited an increasing trend in alkaline soils despite Cd exposure”
Claim · model-written summary
Mn and Zn appear to play crucial roles in suppressing Cd accumulation in rice in both acidic and alkaline soils.
- Taxon
- Oryza sativa L.Oryza sativae0
- Compound
- Mn and Zne6
- Outcome
- Cd accumulatione6
- Direction
- suppressinge6
- Setting
- both acidic and alkaline soilse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cadmium (Cd) contamination in rice (Oryza sativa L.)”
e6“Correlation analyses indicated Mn and Zn play crucial roles in suppressing Cd accumulation in both acidic and alkaline soils”
The same questions in other papers
cadmium atom · yield · Oryza sativa (rice)Results differ
24 papers in the same direction as this paper · 6 in the opposite direction
- positive
- positive
- positive
27 papers more in this group
See all 31 papers →cadmium atom · nutrient: content · Oryza sativa (rice)Results differ
33 papers in the same direction as this paper · 13 in the opposite direction
- negative
- positive
- positive
43 papers more in this group
See all 47 papers →heavy metal · nutrient: content · Oryza sativa (rice)Positive and negative results
14 papers in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
15 papers more in this group
See all 19 papers →heavy metal · yield · Oryza sativa (rice)Results agree
21 papers in the same direction as this paper
- negative
- negative
- negative
18 papers more in this group
See all 22 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.